body {
    overflow-y: hidden;
}

.el-header, .el-footer {
    background-color: #B3C0D1;
    color: #333;
    text-align: center;
    line-height: 60px;
    padding: 0%;
    width: 100%;
    /*backdrop-filter: blur(20px);*/
}

.el-main {
    background-color: #E9EEF3;
    color: #333;
    text-align: center;
    padding: 0;/*内边距*/
    height: calc(100vh - 60px);/* 设置主体 main 高度*/
}

.flex-grow {
    flex-grow: 1;
}